英國求職

英國求職 不論經什麼途徑找工作，Do you have right to work in UK? 你有在英國工作的權利嗎？為什麼會這樣問？為防止黑工，非法移民等，僱主在招聘新人前，必須要確定對方可以在英國打工，否則僱主便是犯法。

※ 英國求職 學歷證明 ※

ECCTIS網址: https://www.ecctis.com/signup.aspx

• ECCTIS 學歷認證服務
  1. The Statement of Comparability (把香港的大學學歷轉換到英國)
  2. Visas and Nationality Services (把香港的英文水平轉換到英國)
• The Statement of Comparability
  1. 框架水平進行對比，並不會每科提供等級對比
     • 如GCSE Maths equivalent
     • 如GCSE English equivalent
  2. 準備文件 (英文版SoftCopy)
     • 大學畢業證書
     • Transcript
     • 公開試成績
  3. 費用
     • £49.5 + 20%VAT
• Visas and Nationality Services
  1. 豁免英國申請永居嘅英文試
  2. 準備文件
     • 大學畢業證書
     • Transcript
     • Medium of Instruction (問大學開出的以全英文授課證明)
       • 香港城市大學: https://www.cityu.edu.hk/sgs/student/TPg/service/testimonial
  3. 費用
     • £140 + 20%VAT

※ 英國求職 的網站 ※

• LinkedIn
  1. 寫CV用
• uk.indeed.com
• reed.co.uk
• cv-library.co.uk
• monster.co.uk
• jobsite.co.uk
• totaljobs
• randstad.co.uk
• jobserve.com/gb/en/mob/
• cwjobs.co.uk
• gov.uk/find-a-job
  1. UK勞工處
• findagoodboss.uk
  1. 香港人設立
• glassdoor

※ 其他證書 ※

• DBS (Disclosure and Barring Service) 英國無犯罪記錄的證書
  1. Basic 可自己申請
  2. Standard 由僱主申請
  3. Enhanced 由僱主申請
• Right to work check
  1. 提供BPR/APP: uk immigration: id check
• 香港警務處良民證申請
  1. https://www.police.gov.hk/ppp_tc/11_useful_info/cert_no_crime.html

※ Interview Self-Introduction Template ※

“I’ve been working in IT networking for eight years from Datacenter NOC, Network Engineer to Senior Network System Analyst. At my current job in the Network Team of one of the four biggest mobile ISP, I am responsible for 100Gb Mobile DataPath Stability, Firewall VPN Security and VM servers handling for five-million users. I also help prepare correspondence, presentations and reports. I’m known for being a detail-oriented, well-organised team player. I never miss a deadline, I’m a good communicator, and I can juggle several tasks at once. In my performance reviews, my supervisor always notes that he appreciates my professionalism and enthusiasm for the job. With this experience under my belt, I’m looking for an opportunity to take the next step in my career. I’m hoping to do so in a team like yours that works to improve the IT networking, something I’m passionate about.”

※ My Skill Set Preparation ※

EIGRP

• Metric: Bandwidth and Delay
• Wide Metric: 64-bit metric calculation on Named mode
• Default K Value: 10100
• FD: 最短metric
• Successor: 最短的path
• Feasible Successor: AD<FD
• Variance: FD多少倍下Distance的Route可放在Route Table Load-balance
• Leak-map: 把summary route中某些route滲出來
• Query and Replay: 如沒Path用, 便發Query Message
• Stub: 不會接收Query Message
• Named Mode: Hierarchical Manner
• Metric Rib-scale: 把只入了Topo Table而沒有入Route Table的Route metric scale 細

OSPF

• Router Role
• Neighbour & Adjacency
• LSA
• O>IA>E1>E2
• Stub: 化做LSA3或default route
• Metric: Cost + Cost..
• Load Balancing: 相同Metric
• Virtual link: 誇區連入Area0
• Summarisation (ABR/ASBR)
• 優化
  • Pacing Timer: 儲一堆LSA/Update Packet才發出, 及減少LSA retransmit
  • SPF Throttle Timer: 把收到的Link State Update 儲一堆才做
  • LSA Throttle Timer: 把收到的Local Link State Update 儲一埋才做

BGP

• Peer State
  • IDLE
  • CONNECT
  • OPEN SENT
  • OPEN CONFIRM
  • ESTABLISHED
  • ACTIVE
• update-source Loopback
• eBGP Multihop
• Peer Group
• Network
• Next-hop-self
• Synchronisation
• Route Reflector
• Confederation
• Community
• Best Path
  • 0. 基本條件(Network可達, AS Path 沒自己AS, Synchronisation)
  • 1. Weight
  • 2. Local Preference
  • 3. Locally Originated (Network, Agg-address, IGP redistribute)
  • 4. AS Path 短
  • 5. Origin Type (i>e>?)
  • 6. MED 小
  • 7. eBGP > i BGP (1-6相同後可Multipath)
  • 8. Next Hop IGP Metric 小
  • 9. Multipath
• Aggregate-Address
  • aggregate-address (加一條sum)
  • summary-only (只剩一條sum)
  • suppress-map (Leak其一小route)
  • as-set (保留所有小route的community)
  • advertise-map (保留其一小route的community)
  • attribute-map (直接set sum route的屬性)
• Route Injection (把大route拆成小route)
• Backdoor (BGP讓EIGRP/OSPF行先)
• Dampening (Route Update/Withdraw/改Attribute便加Penalty)

STP

• Mode
  • PVST+
  • RSTP
  • MSTP
• Spanning Tree 選舉
  • 選Root Switch (Switches)
  • Switch選一個Root Port (Switch ports)
  • Link選一個Designated Port (Link ports)
  • RSTP 限定: 選Alt/Backup port (Link ports)
• Port State
  • PVST+ (Disabled/Blocking/Listening/Learning/Forwarding)
  • RSTP (Disabled/Learning/Forwarding)

MPLS

• Router Role
  • LSR
  • Ingress LSR
  • Egress LSR
  • Core LSR
• MPLS VPN
  • RD: Companies
  • RT: import/export
  • MP-BGP: send community

IPsec

• 基本保障
  • Integrity (完整性): [MD5, SHA]
  • Authentication (身份認證): [PSK, RSA, Key Management]
  • Confidentiality (加密): [DES, 3DES, AES, SEAL]
• IKEv1 or IKEv2?
  • IKEv1: Phase I 可選Main/Aggregate Mode
  • IKEv2: Phase I 只有4 msg, 同時支援NAT-T,AES加密, EAP認證
• IKEv1 Phase I [udp500/4500]
  • 建立加密管道)(金鑰交換)
  • 設定IKE SA, SADB
  • Main Mode or Aggregate Mode?
    • Main Mode: 可以加密對家身份. 但6-ways handshake
    • Aggregate Mode: 3-ways handshake, 但不能加密對家身份, 都有hash
• IKEv1 Phase II
  • 傳送加密Data
  • 設定Ipsec SA, SPD
  • 只有Quick Mode
    • Transport Mode or Tunnel Mode?
      • Transport Mode: 只加密Data不加密IP, Internal用
      • Tunnel Mode: 加密Data又加密IP, 經Internet用

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